Transverse electric or quasi-transverse electric mode to waveguide mode transformer
US6087907A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 1998 |
| Grant date | Jul 11, 2000 |
| Priority date | — |
| Expiry date | Aug 31, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P5/107
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A transverse electric or quasi-transverse electric mode to rectangular waveguide mode transformer converts an electrical signal propagating in a transmission line from the TE or quasi-TEM transmission mode to a rectangular waveguide transmission mode for propagating in a waveguide. The transformer comprises a trace printed on a substrate, the substrate having first and second major surfaces and first, second, third, and fourth minor surfaces. The transformer is logically divided into a quasi-TEM mode portion, a conversion portion, and a waveguide mode portion. The quasi-TEM mode comprises a length of microstrip. The microstrip widens to a conversion trace in the conversion portion where there is one or more converting fins oriented perpendicularly to the direction of signal propagation. The conversion portion is adjacent the waveguide mode portion comprising metalized first and second major surfaces and third and fourth minor surfaces. The fins direct the quasi-TEM energy into waveguide mode energy in the substrate for propagation through the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.